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Alan Alda plays a classical piano player on the rise who befriends a famous player himself who's at death's door. Unknown to Alda, the guy is a satanist, who arranges to have thier souls switch places at his death, so that he can be young again and continue to play piano (thus needing a skilled piano player like Alda to switch bodies with).

How to Watch The Mephisto Waltz Legally and Safely

If you want to stream The Mephisto Waltz through reputable and legal services, there are a few good options depending on where you are. Subscription platforms like HBO Max, Disney+, Netflix, Amazon Prime Video, and Apple TV+ sometimes carry The Mephisto Waltz films or related DC titles—though availability depends on your country.

If you’d rather not commit to a subscription, there are ad‑supported, free (but legal) platforms such as Tubi, Pluto TV, Peacock or Crackle (where available in your region) that occasionally host superhero films.

Lastly, don’t forget about library‑linked streaming options like Kanopy or Hoopla (if your library or university is registered), and official uploads by film distributors on YouTube—these can also give you legal access to classic movies.